Cylindrical health device and method for manufacturing cylindrical health device

Abstract

A cylindrical health device includes, from an inside toward an outside, at least a cylindrical member and a treatment portion. The treatment portion is made of a foamed resin, and a reinforcing member having a plate shape is provided at least at a central portion of the cylindrical member along a longitudinal direction. Furthermore, the cylindrical member is a thin-walled cylindrical object having an internal space of a predetermined volume, and maintains lightweight while allowing an inside of the cylindrical member to be used for various purposes. In addition, typically, the shape of the reinforcing member is a plate shape such that the reinforcing member is easily accommodated inside the cylindrical member of the cylindrical health device.

What is claimed is: 
     
         1 . A cylindrical health device comprising, from an inside toward an outside:
 at least a cylindrical member;   an adhesive layer; and   a treatment portion,   wherein the treatment portion is made of a foamed resin, and   a reinforcing member is provided at least at a central portion of the cylindrical member along a longitudinal direction.   
     
     
         2 . The cylindrical health device according to  claim 1 ,
 wherein the reinforcing member has a plate shape and is provided with an opening.   
     
     
         3 . The cylindrical health device according to  claim 1 ,
 wherein the reinforcing member is fixed to a fixing portion provided in the cylindrical member.   
     
     
         4 . The cylindrical health device according to  claim 1 ,
 wherein embossed patterns are provided on a surface of the cylindrical member.   
     
     
         5 . The cylindrical health device according to  claim 4 ,
 wherein a non-formed portion in which the embossed patterns are not formed is provided at a predetermined distance from an end portion of the cylindrical member along the longitudinal direction of the cylindrical member.   
     
     
         6 . The cylindrical health device according to  claim 1 ,
 wherein the foamed resin of the treatment portion includes at least a foamed resin containing a first coloring agent, a foamed resin containing a second coloring agent having a hue different from a hue of the first coloring agent, and a foamed resin containing a third coloring agent having a hue different from the hues of the first coloring agent and the second coloring agent.   
     
     
         7 . The cylindrical health device according to  claim 1 ,
 wherein when the reinforcing member including an opening and provided at the central portion is referred to as a first reinforcing member, a second reinforcing member including a plurality of openings is provided at both end portions or one end portion of the cylindrical member.   
     
     
         8 . A method for manufacturing a cylindrical health device including, from an inside toward an outside, at least a cylindrical member, an adhesive layer, a treatment portion, and a reinforcing member, the method comprising the following steps (A) to (D):
 (A) a step of preparing a first cylindrical member in which at least the reinforcing member is provided in advance or a second cylindrical member to which the reinforcing member is later fixed, the adhesive layer, and a sheet-shaped material for the treatment portion in a foamed state derived from a plurality of foamed resins;   (B) a step of forming the cylindrical health device by wrapping the sheet-shaped material for the treatment portion in a foamed state around the cylindrical member via the adhesive layer;   (C) a step of compression-molding the sheet-shaped material for the treatment portion by accommodating the cylindrical health device inside a mold and then heating and pressurizing the cylindrical health device; and   (D) a step of attaching the reinforcing member to the second cylindrical member when the second cylindrical member is used.